MP4 conversion app - resolution size

Nigel Ridley nigel at
Fri Feb 1 13:47:45 UTC 2008

Daniel Pittman wrote:
> Nigel Ridley <nigel at> writes:
>> My daughter just bought an MP4 player but when I try to play video
>> clips (any of the formats that the player recognizes) that I have
>> successfully copied from my Feisty box, I get an error message:
>> 'File Format Error'
>> Somebody told me it's because the video clip's resolution is too big.
> It could be.
>> Is there an app that will reduce the resolution size of said clips?
> ffmpeg, mencoder, transcode, and a host of similar tools.   Try avidemux
> if your release contains it, which has a nice GUI interface to this sort
> of thing.
>> Is this the answer?
> No idea.  It could be, but you have not provided anything like enough
> detail for us to know.  Assuming that the device doesn't produce a
> helpful error in addition to that particular one ... try it and find
> out.
> Also useful: try putting some video on there using the supplied Windows
> tool, if possible, then extract it to your Feisty system.  That should
> give some more information about what is done to the video on the way
> through.
> Regards,
>         Daniel

I tried the avidemux app but couldn't see any way of reducing/converting.

I did a google of the problem and there are a ton of folks with the same 
problem. The answer is to use a convert tool but I can't find anything 
for Linux (there was one but it seems like it's just for 'psp'.

There is this one:
but I'm not sure how much Gnome stuff I will need.



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